Finding the Fourth Proportional to 10,517.88, 15,779.86 and 3,401.97

Step by Step Solution

1. Step 1: Write the proportion equation
   10,517.88 : 15,779.86 = 3,401.97 : x
2. Step 2: Convert to fraction form
   10,517.88/15,779.86 = 3,401.97/x
3. Step 3: Cross multiply
   10,517.88x = 15,779.86 × 3,401.97
4. Step 4: Simplify right side
   10,517.88x = 53,682,610.32
5. Step 5: Solve for x
   x = 53,682,610.32/10,517.88
6. Step 6: Final answer
   x = 5,103.94